Senior Android Engineer (Contract, Outside IR35)
Contracting often means being dropped into a client's team as the outsider.
Here you'll join a hedgehog lab team delivering a UK bank's Android app as it moves to Jetpack Compose.
It's a contract outside IR35, expected to start in January 2027 and run for around 6 months. You'll work on a remote first basis. What's in it for you
You'll be part of a consultancy team that owns the delivery, working with people who care about testing, code reviews and code quality.
You'll build new UI in Compose from the start, on a codebase that's actively modernising.
You'll add regulated banking work to your CV, which carries weight on future contracts. Who you'll be doing it for
hedgehog lab is a digital product consultancy with 20 years of experience helping public and private sector organisations through digital transformation. We're B Corp and Great Place to Work certified.
You'll be part of a hedgehog lab delivery team working on our client's customer-facing Android app. Our client is a well-known UK bank. What you'll be doing
- Building new features and screens in Jetpack Compose
- Maintaining XML and Data Binding screens and migrating them to Compose
- Working in Kotlin, with some legacy Java, within an MVVM architecture using Hilt and Dagger
- Consuming REST APIs and maintaining third-party SDKs
- Writing unit tests with JUnit and MockK so changes and refactors stay safe
- Debugging on emulators and real devices, including performance issues
- Reviewing pull requests and taking part in sprint planning, stand-ups and retros
Experience you must have
- Commercial Android experience in Kotlin, including Coroutines and Flow
- Jetpack Compose, plus XML layouts, Data Binding and enough Java to work on older code
- MVVM and dependency injection with Hilt and Dagger
- Unit testing with JUnit and MockK, and using tests to make safe changes in large codebases
- Mobile security, particularly protecting sensitive data and securing network calls
Experience that's nice to have
- Banking, fintech or other regulated apps
- SAFe or another scaled agile framework
- Migrating XML screens to Compose
- UI testing with Espresso or Compose
- Certificate pinning, code obfuscation and root detection
- Accessibility experience
How to apply
If this sounds like you, apply below and we'll be in touch.
Commercial Android experience with Kotlin, Jetpack Compose, MVVM, Hilt, Coroutines, unit testing, and mobile security; experience with large codebases and safe refactoring.
Key Responsibilities
- building Android features
- migrating XML to Compose
- writing unit tests
Skills & Tools
Kotlin, Jetpack Compose, Hilt, Dagger, Coroutines, Flow, JUnit, MockK, Espresso, XML, MVVM, Data Binding, Retrofit, REST APIs
Job Details
- Category: Software Development
- Seniority: Senior Level
- Commitment: Contract
- Workplace: Remote — Newcastle upon Tyne or Edinburgh or Leeds or London or Manchester or United Kingdom
- Languages: English
About hedgehog lab
A digital product consultancy helping organizations through digital transformation. — Industry: Information Technology